package com.linkwings.httpconverter;

import java.io.IOException;
import java.lang.annotation.Annotation;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.codehaus.jackson.JsonGenerator;
import org.codehaus.jackson.JsonProcessingException;
import org.codehaus.jackson.map.JsonSerializer;
import org.codehaus.jackson.map.SerializerProvider;


/**
 *  java日期对象经过Jackson库转换成JSON日期格式化自定义类
 * @author lannerk
 * @date 2010-5-3
 */
public class JacksonDateSerializer extends JsonSerializer<Date> {
		SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");

        @Override
        public void serialize(Date value, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonProcessingException {
                if(value!=null){
                    String formattedDate = formatter.format(value);
                    jgen.writeString(formattedDate);
                }else{
                	jgen.writeString("");
                }

        }
}